Tump sor kotos-vehicles



S. A. STRICK'LAND.

PUMP FOR MOTOR VEHICLES.

APPLICATION FILED AUG-5, 19m.

1,376,903. Patented May 3, 1921.

2 SHEETS-SHEET l.

S. A. STRICKLANIL' PUMP'FOR MOTOR VEHICLES.

APPLICATION FILED AUG,-5.| I918.

Patnted May 3,1921.

2 SHEETS-SHEET 2.

gnaw/1060's SM d WWX .ttiiTE STATE SILAS A. STRIGKLAND, 0F DETROIT, MICHIGAN, ASSIGNOR T0 DETROIT ACCESSORIES CORPORATION, 013 DETRQIT, MICHIGAN, A CORPOBATEON 0E IVIICHIGAN.

PUMP FOR IEOTOR-VEHICJLES Specification of Letters JPatent.

Patented May 3, 1921.

Original application filed December 13, 1915, Serial No. 66,513. Divided. and this application filed August 5, 1918. Serial No. 248,498.

T 0 all whom it may concern:

Beit known that I, SILAS A. STRICKLAND, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Pumps for Motor-Vehicles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to matters divided out from my former application. filed December 13, 1915, Serial No. 66,513 for pumps for motor vehicles, which application has matured into Patent No. 1394,56 1, dated Feb. 18, 1919, wherein the subject matter thereof is directed to the supporting of a pump upon the end of an engine shaft by means passing loosely through an opening in a chassis element, which matter is common to both applications and is shown in Figs. 1 to 6 inclusive of the drawings hereof, the subject matter of this application refer ring more particularly to a manner of detachably supporting a pump upon the front end of a motor vehicle and driving the same from the shaft of the motor, the invention consisting in the novel construction and arrangement of parts as hereinafter more fully set forth, reference being had to the accompanying drawing, but it is to be understood that the structural elements are susceptible to such variations in their construction, arrangement and combination as fall within the scope of the appended claims.

in the drawings, I

Figure 1 is an elevation of an air pump, a portion of an engine sha't, and a portion of a chassis, the latter being in section and a portion of the pump broken away and in section;

Fig. 2 is a plan view of the same;

Fig. 3 is a front elevation of the same;

Fig. 41 is a cross sectional view taken on the line 1V1V of Fig. 3;

Fig. 5 is a perspective viewof a portion of a pump ear;

Fig. 6 is a perspective view of the detached keeper;

Fig. 7 is an elevation of an air pump, a portion of an engine shaft, and a universal coupling shaft, the latter partly broken away and partly in section;

Fig. 8 is a plan of the same;

Fig. 9 is a front elevation of the same; and

Fig. 10 is a cross sectional view taken on the line X-X of Fig. 9.

lhe drawings show portions of a motor vehicle, as an engine or motor shaft 1 having a transverse pin 2 adjacent the outer end thereof; a portion of a radiator 3, and a chassis element, as a transverse channel member -1- having an opening 5 in axial alinement and in proximity to the outer end of the engine shaft 1.

Referring now to Figs. 1 to 6 inclusive, an air pump 6 is associated with. the above elements, said air pump having a back plate 7 provided with a bushing 8 adapted toextend into the opening 5 of the channel member 1. The bushing 8 constitutes one of the bearings of a pump shaft and the rear end of said pump shaft terminates in a rigid and integral coupling socket 10, having the rear end thereof slotted, as at 12, whereby the coupling socket can be slipped on the end of the shaft 1 and placed in engagement with the pin 2 thereof for rotative continuity with the engine shaft. The outer end of the engine shaft and the coupling socket 10 are of sufficient length whereby after the air pump is placed in engagement with the engine shaft said shaft constitutes the sole means of supporting said air pump and this constitutes an important feature of my invention.

t is now apparent that if the engine shaft 1 be driven, the air pump would be bodily rotated and to prevent such movement of the air pump and permit the shaft 9 to perform its usual function in connection with the pump, 1 have devised means in connection with the plate 7 and the channel member 1 for holding the pump practically stationary. Such means however does not constitute a support for the pump, as said pump is solely supported by the engine shaft, but simplymaintains the pump in an operative useful position.

The channel member 41, contiguous to the opening 5, has openings 13 to receive keepers in the form of bushings 1 1. The inner ends of the bushings are eXt-eriorly screwthreaded to receive nuts 15 and the outer ends of said bushings terminate in cylindrical heads 16 having radially disposed grooves 17 in communication with the bores of said bushings.

Slidable in the keepers of the channel member 4 are retaining members comprising pins 18 having the inner ends thereof provided with abutments 19 for coiled compression springs 20 encircling the inner ends of the pins 18, said springs holding the retaining members in a retracted position.

The outerends of the pins 18 terminate in cranks 21 having finger pieces 22 and said cranksare normally held in engagement with the heads 16 of the keepers and in the grooves 17 of said heads, thereby preventing rotation of the retaining member until the cranks 21 are removed from the grooves 17. The cranks 21 of the retaining members are adapted to engage bifurcated or slotted cars 23 forming the ends of the plate 7, and said ears have grooves 24 in communication with the slots thereof to receive the cranks 21 of the retaining members. By reference to Fig. 3 it will be noted that the slots or bifurcations of the ears 23' are of sufficient size to receive the retaining members and with said members. in a lateral position, the air pump canbe easily placedin an operative position relative to the engine shaft and then the retaining members swungto vertical positions simply to prevent the air pump from rotating. With the retaining members in unlocked positions there is sufficient clearance between said members and ears 23 to permit of the air pump being properly positioned on the engine shaft, and such clearance emphasizes the fact that, the air pump is solely supported by its operating means.

As heretofore stated, there are times when the relative position of the engine shaft and the channel member or a similar support is such as to prohibit the operation of an air pump by the engine shaft without the intervention of a transmission device,

and with this inequality in mind, reference will be had to Figs-.7 to 10 inclusive. In these views the reference numeral 40 denotes an engine shaft provided with a transverse pin 41; 42 a channel member having an opening 43; 44 an air pump, and 45 a plate secured to the air pump and provided with a bushing 46 for the pump shaft 47. The pump shaft 47 is slotted, as at 51, and provided with a socket 48 to receive the reduced ball or spherical end" 49 of a universal coupling shaft 50.. The ball or spherical end of the shaft has a transverse pin 52 extending into the slots of the pump shaft to establish rotative continuity between the pump shaft and the, universal coupling shaft, and a coiled compression spring 53 encircles the reduced end of the universal coupling shaft to assist in preventing accidental displacement of the. same. The opposite end of the universal coupling shaft terminates in a socket 54 provided with slots 55, said sockets receiving the end of the engine shaft -10 with the transverse pin 41 extending into the slots 55 to establish rotative continuity between the universal coupling shaft and the engine shaft. The pin and slot connection between the pump shaft and the universal couplin shaft prevents accidental displacement of the latter relative to the 'l'oriner, and facilitates placing the universal coupling shaft in position as a transmission device from the engine shaft to the pump shaft, yet allowing longitudinal and angular adjustment of the universal coupling shaft relative to the pump shaft.

hen the universal coupling shaft 50 is used. it, is necessary that the air pump he supported not only against rotation, but by some means other than the shaft 50 or the engine shaft 40, therefore the channel member 42 is provided with studs 56 to receive apertured cars 57 of the plate 45. The studs 56 have conical heads 58 to facilitate placing the cars 57 on said studs and said ears have pivoted slotted resilient [latch members 59 that can be easily shifted into engagement with the studs 5-6, behind the heads 58 thereof to lock the cars 57 in engagement with the channel member 4'2. whereby the air pump will be firmly supported relative to said channel member. This manner of connecting the air pump to the member 452 permits of said air pump being quickly and easily installed. and while the engine shaft 4i has been illustrated in alinement with the opening 43 of the nicniber 42, it is apparent that the opening 4;) may just as readily be out of alinement with the engine shaft, as the universal coupling shaft constitutes means whereby power may be transmitted to the air pump by the engine shaft.

lVhat I claim is 1. In combination with a fixed portion and a driven shaft of a motor vehicle and a detachable tire pump having a pump shaft in substantial alinement with and detachably coupled to the driven shaft, means for engaging the fixcd portion of the vehicle to prevent rotation of the pump body in both directions in respect to the driven shaft, said I means comprising a member that is brought into rotation preventing relation with the fixed portion by a sliding endwise movement longitudinally of the shaft.

2. In combination with the engine shaft and with a fixed portion of a motor vehicle, said fixed portion including the front cross bar, a detachable tire pump having a pump shaft in substantial alinement with and detachably coupled to the engine shaft, and means. adapted to be brought into position for preventing rotation of the pump body in respect to the engine shaft by an endwisc movement other than rotative longitudinally of the shaft, said means including a member forming a connection between said pump and cross bar to prevent rotation of the pump body in both directions.

3. In combination with the engine shaft and a fixed cross member of a motor vehicle, a pump having a shaft, means for detachably coupling the pump and engine shafts, and members on the pump body and cross member adapted to be inter-engaged by a movement other than rotative of the pump body toward the cross member to prevent rotation of the pump body in either direction about its shaft.

4. The combination with a fixed portion and a driven shaft of a motor vehicle, a pump detachably supported by said fixed portion and having a shaft detachably connerted to said driven shaft, inter-engaging means for preventing rotation of the pump about its shaft in either direction and for preventing movement of said pump in a direction longitudinally of its shaft relative to said fixed portion, said means being brought into inter-engaging relation by a sliding movement longitudinally of the shaft.

5. lfhe combination with a chassis crossmember and a driven shaft of a motor vehicle, a tire pump detachably supported by said cross member and having a shaft detachably connected to the driven shaft, a holding member adapted to be brought into position to prevent rotation of the pump about its shaft by a movement longitudinally of the shaft other than rotative, and locking means for the holding member to prevent movement of the pump relative to the cross member in a direction longitudinally of the pump and driven shafts.

6. The combination with a chassis crossmember and a driven shaft of a motor vehicle, a tire pump having a shaft detachably connected to the driven shaft, and a holding member projecting from the cross member in a direction longitudinally of said shafts to engage the pump upon movement other than rotative of the pump body toward the cross member and prevent rotation of the pump about its shaft in either direction.

7. The combination with a chassis cross member and a driven shaft of a motor vehicle, a tire pump having a shaft detachably connected to the driven shaft, a holding member projecting from the cross member to engage the pump upon sliding movementlongitudinally of the shaft of the pump toward said cross member and prevent rotation thereof about its shaft, and lockingmeans to engage said holding member and prevent movement of the pump in a direction longitudinally of its shaft relative to said cross member.

8. The combination with a chassis cross member and a driven shaft of a motor vehicle, a tire pump detachably supported by the cross member and having a shaft extending in a direction longitudinally of the driven shaft, and universal coupling means connecting said shafts and comprising two members, one formed with a socket at its end and slots in its sides opening into said socket, and the other member formed with a head projecting into the socket with projections engaging said slots, and a spring to normally hold one member projected from the other with said projections engaging one end of said slots.

\ In testimony whereof I afiix my signature in the presence of two witnesses.

SILAS A. STRICKLAND.

Witnesses ANNA M. Donn, L. E. FLANDERS. 

